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Bryozoans

      The Bryozoa, also known as Ectoprocta or commonly as moss animals, are a phylum of aquatic invertebrate animals. Typically about 0.5 millimetres (0.020 in) long, they are filter feeders that sieve food particles out of the water using a retractable lophophore, a "crown" of tentacles lined with cilia. Most marine species live in tropical waters, but a few occur in oceanic trenches, and others are found in polar waters. One class lives only in a variety of freshwater environments, and a few members of a mostly marine class prefer brackish water. Over 4,000 living species are known. One genus is solitary and the rest colonial. The phylum was originally called "Polyzoa", but this term was superseded by "Bryozoa" in 1831. Another group of animals discovered subsequently, whose filtering mechanism looked similar, was also included in "Bryozoa" until 1869, when the two groups were noted to be very different internally. The more recently discovered group were given the name Entoprocta, while the original "Bryozoa" were called "Ectoprocta". However, "Bryozoa" has remained the more widely used term for the latter group.

Source: en.wikipedia.org/wiki/Bryozoa
Bryozoa Ehrenberg, 1831 JK5789
Bryozoa Ehrenberg, 1831 JK5790
Bryozoa Ehrenberg, 1831 JK5791
Bryozoa Ehrenberg, 1831 JK5781
Bryozoa Ehrenberg, 1831 JK6460
Bryozoa Ehrenberg, 1831 JK6461
Bryozoa Ehrenberg, 1831 JK6462
Bryozoa Ehrenberg, 1831 JK6463
Bryozoa Ehrenberg, 1831 JK6464
Bryozoa Ehrenberg, 1831 JK6465
Bryozoa Ehrenberg, 1831 JK6466
Bryozoa Ehrenberg, 1831 JK6467
Bryozoa Ehrenberg, 1831 JK6468
Bryozoa Ehrenberg, 1831 JK6469
Bryozoa Ehrenberg, 1831 JK6470
Bryozoa Ehrenberg, 1831 JK6471
Bryozoa Ehrenberg, 1831 JK6472
Bryozoa Ehrenberg, 1831 JK6473
Bryozoa Ehrenberg, 1831 JK6474
Bryozoa Ehrenberg, 1831 JK6475

Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]